Arcadia Lake
Hampshire County, MassachusettsView mapDirections
MassDEP publishes the water-quality measurements for Arcadia Lake. Here is what has been measured.
- Oligotrophic
- Impaired · Algal growth
- Limited data
Arcadia Lake in Hampshire County, Massachusetts has water-quality measurements published by MassDEP, shown here as reported. Chlorophyll-a (algae): 1.1 µg/L.
Arcadia Lake is a cold, clear oligotrophic lake in Hampshire County, Massachusetts. Compared to the 3 other monitored lakes in Hampshire County, Arcadia Lake ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, MassDEP, last sampled 2016-09-13. Methodology: how these readings are compared.
Swimming conditions
Readings onlyRecreation use not supported
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Arcadia Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, nuisance exotic species, nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Whether Arcadia Lake is safe to swim in today is a call for the Massachusetts Department of Environmental Protection and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Arcadia Lake
These are the measurements MassDEP publishes for Arcadia Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Chlorophyll-a 1.1 µg/L. TSI 32.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | 1.1µg/L | Good GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 32 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
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Fishing Arcadia Lake
EPA Impairment Status
Arcadia Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Aquatic life, Recreation, Other.
Source: EPA ATTAINS assessment unit MA34005 · Official waterbody report
Nearby Lakes in Hampshire County
Frequently asked questions about Arcadia Lake
Where is Arcadia Lake?
- Arcadia Lake is a lake in Hampshire County, Massachusetts. Its water-quality measurements are published by MassDEP and shown on this page as reported.
What is the water quality of Arcadia Lake?
- Arcadia Lake in Hampshire County, Massachusetts has water-quality measurements published by MassDEP, shown here as reported. Chlorophyll-a (algae): 1.1 µg/L.
Is Arcadia Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Arcadia Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, nuisance exotic species, nutrients (phosphorus, nitrogen). Check local advisories before you swim.
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Where this data comes from
3 measurements from 1 monitoring station, 2016. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Massachusetts Department of Environmental Protection (MassDEP)
MASSDEP3 samples · 2016
Analytical methods
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database